Recently, Renren Group took the lead in successfully developing special bearings for new energy vehicles in China, which indicates that China's bearing industry has blew its horn of independent bearing market for new energy vehicles.
People's Group new energy automotive bearing production site
a booming market
In 2017, the global sales of new energy passenger vehicles totaled more than 1.22 million units, a year-on-year increase of 58%. Among them, China's new energy passenger vehicles sold more than 578,000 units, accounting for up to 47.37%.
As the country deepens energy conservation, emission reduction and environmental protection, new energy electric vehicles instead of fuel vehicles have become the development direction of the automotive market.
More and more international automakers have developed a strategy to develop the electric vehicle industry in China.
Not long ago, Ford Motor Company announced its strategy to develop the electric vehicle industry in China. It plans to move 70% of its electric vehicles to China by 2025.
In 2016, Tesla, the US electric vehicle and energy company, achieved sales of US$1 billion in China. The Tesla official said that Tesla’s sales in China will account for the largest share of its global sales in a few years. .
On July 10, 2018, Shanghai Municipal Deputy Mayor Zhou Bo and Tesla Vice President Ren Yuxiang signed the agreement on behalf of both parties. Tesla (Shanghai) Co., Ltd. and Tesla (Shanghai) Electric Vehicle R&D Innovation Center were unveiled.
According to the agreement, the Shanghai Municipal Government and Tesla will deepen cooperation and exchanges in technological innovation and industrial development. The Shanghai Municipal Government will actively support Tesla to establish a company integrating development, manufacturing, sales and other functions in Shanghai. The vehicle research and development innovation center promotes the transformation of innovative technological achievements, accelerates the development of globalization, promotes the development of Shanghai's high-end manufacturing industry, accelerates the construction of a world-class automobile industry center, and provides strong support for Shanghai to become a global city of excellence, achieving win-win cooperation.
Tesla also signed a special investment agreement for pure electric vehicles with Shanghai Lingang Management Committee and Lingang Group. Tesla will establish a wholly-owned super research and development, manufacturing and sales function in Shanghai Lingang area. Factory. Tesla (Shanghai) Electric Vehicle R&D Innovation Center is mainly engaged in electric vehicle development, and will actively promote the transformation of electric vehicle innovation technology results.
With the surge in sales of new energy vehicles, the demand for drive motors is rising rapidly. It is predicted that the global market for drive motors will reach $4.4 billion by 2020.
New energy vehicle drive motors require special bearings.
Compared with traditional vehicles, new energy vehicles require high speed motors, which can meet the low temperature requirements of -40 °C and high temperature requirements above 150 °C. The bearings are required to have maintenance functions and can adapt to the axial impact caused by frequent start and stop.
The new energy vehicle special bearing market is booming, and it poses a serious challenge to the bearing industry. Yan Zhizheng, a researcher-level senior engineer of Beijing Automotive Group Co., Ltd. and Chen Guangzu, secretary general of the China Automotive Industry Advisory Committee, agree that the Chinese bearing industry should meet this challenge and actively develop 2. Produce special bearings for new energy vehicles and master the initiative in market competition.
High development and production requirements
Bearing production expert, Chairman of Beijing Taixin Measurement & Control Technology Co., Ltd., Tao Fazhen said in an interview: 'The new energy vehicle high-speed drive motor has strict requirements on bearing technology and quality, and it poses a severe challenge to the development and production of bearings. '
Yan Zhizheng also said that the special bearings for new energy vehicles have high requirements for development and production.
The quality and performance indicators of special energy vehicles for the development and production of the Group have reached the international advanced level, especially in the high-speed performance design and test technology of the products to achieve the original innovation.
The application of well-known driving motor enterprises at home and abroad has verified that the special bearing products of the Group's new energy vehicles can meet the quality performance requirements of the market. Therefore, the special bearings for the new energy vehicles of the People's Group have been approved by users and bulk orders. This fully shows the people. The group ranks among the top ten strengths in the world's bearing industry.
People can't help but ask: What kind of conditions does the People's Group develop and produce for the special bearings for new energy vehicles? Guo Changjian, the general manager of the People's Technology Center, answered this question in an interview.
As a nationally recognized enterprise technology center, the Group's technology center optimizes the internal structure of the bearing, and uses simulation technology and lubrication technology to solve the problem of bearing heating and lubrication under high-speed and high-temperature conditions, forming a new energy vehicle drive motor bearing design theory and method, and ensuring special bearings. With high precision, small centrifugal force, low friction, etc., it can meet the comprehensive performance requirements of low starting torque, high speed and rapid shifting, durability and high reliability of new energy vehicles.
This technology center has also developed high-speed high-temperature performance, starting torque performance, durability performance and grease performance test bench for new energy vehicle bearings, overcoming test bench loading procedures, high speed, temperature rise and other problems, and formulated new energy vehicle bearing test specifications. , formed a new energy vehicle bearing series test standard.
The Group has invested in the construction of a number of new energy vehicle bearing production lines to ensure the stability of product quality is effectively guaranteed.
Guo Changjian said: 'We integrated the resources of the People's Group and set up a special bearing technology research team for new energy vehicles. After years of hard work, we successfully developed special bearings for new energy vehicles. Our successful experience is that enterprises must rely on their own strength to effectively integrate resources. , Increase investment in development, master the core manufacturing technology of new energy vehicle drive motor bearings. '
New energy vehicle special bearing
The gap is stable and reliable in product quality
Tao Fazhen said: 'The high-speed drive motor of new energy vehicles has high requirements on bearing precision.'
Sweden's SKF is the world leader in the bearing technology industry and the bearing manufacturing industry. 虞至正正: 'Swedish bearing materials, the world's best. New energy vehicles drive motor speed, high requirements for bearing accuracy and quiet performance. Domestic New energy vehicle drive motor bearing precision, reliability and durability are not as good as Swedish SKF products.
Chen Guangzu believes that the domestic bearing industry is not enough research on the bearing performance of bearings, especially new energy vehicles. Compared with developed countries, there is a big gap in the domestic high-end bearing materials.
Shen Jian, general manager of Jiangsu Auto Parts Co., Ltd., said in an interview with reporters: 'The domestic pure electric vehicle drive motor mainly uses imported Swedish SKF bearings. Domestic new energy vehicle special bearing durability, reliability And the mute effect is not as good as that of developed countries. We mainly manufacture the traditional automobile chassis system bearings, and the new energy car special bearings can not be less. In hybrid vehicles, pure electric vehicles and fuel cell vehicles, the development route of new energy vehicle technology is still unclear. What bearings should we be doing on new energy vehicles? We are still investigating. '
The Group successfully developed hybrid motor drive motor bearings before 2012. After that, it continued to increase research and development efforts, successfully developed new energy vehicle drive motor bearings, and owned a full range of new energy vehicle bearing products. Guo Changjian said: 'Drive Motor bearings are key components of new energy vehicles. Only a few companies in the world can produce in batches. People have successfully developed drive motor series bearings, indicating that the domestic bearing industry has made progress in high-speed design of new energy vehicles and development of lubrication technology. , mastered its manufacturing technology. '
Guo Changjian said: 'High-speed performance is a difficult point in the development of new energy vehicle drive motor bearings. There is no experience to draw directly from. Products should achieve high-speed performance indicators in design and theoretical calculations, but also through high-speed performance tests, simulation bench tests and roads. It can be reliable and durable under high-speed conditions. Therefore, product development involves a wide range of fields, large spans, and long time. It is necessary to consider the cost performance of products and overcome the impact of international brands to achieve industrialization.
Guo Changjian said: 'Compared with similar bearings in developed countries, domestic new energy vehicle drive motor bearings mainly have a certain gap in product quality stability and reliability.'
How does the domestic bearing industry make up for this gap? The answer provided by Guo Changjian is as follows:
Adopt precision grinding technology to improve the precision of grinding and processing, and reduce the discreteness of processing.
The use of new materials, especially the application of grease and cages, improve bearing lubrication conditions, improve the high-speed performance and durability of bearings.
Improve steel purity and heat treatment quality.
Use simulation and test technology to speed up development and ensure bearing reliability.
Niu Hui, deputy secretary-general of China Bearing Industry Association, said in an interview: '30% to 40% of bearings in the bearing industry are used in automobiles. Compared with fuel vehicles, the use of pure electric vehicles is reduced. Promote purely applied electric vehicles, bearings The industry will merge and change production. '
The development of new energy vehicle market has brought new challenges and business opportunities to bearing enterprises. The traditional automotive bearing industry is facing a reshuffle.
Guo Changjian said: 'We will pay close attention to the development trend of new energy automobile bearing market, increase product performance research and experimental verification, and jointly develop new products with new energy vehicle drive motor manufacturers at home and abroad, participate in the formulation of the same industry standards, and lead the development of the same industry. '